Car-coupling



(No Model.) 2 sheets-sheet 1.

R. M. DRY.A GAR GOUPLING.

No. 414,898. Patented Nav. 12, 1889.

ATTH/VEYS.

N4 PETERS. imma-Lithograph", Wahmgton, D4 C.

2 SheetsSheet 2.

1. l (No Mode *Rf M' DRY.

GAR GQ'UBLING. y No. 414,898. Patented N0v.v12, 1889.

73 UM Y Y ATTORNEYS,

UNITED) STATES? PATENT OEFICE.

ROBERTS M. DRY, OF DUQYUOIN, ILLINOIS.

cAR-coUPLlNG.

SPECIFICATION forming part of Letters Patent No. 414,898, dated November 12, 1889. Applicationled .Tune 18,1889. Serial No. 314,709. (No model.)

T0 all whom it may concern:

llev it known that I, ROBERTS' M. DRY, of

Duquoin, in the county of Perry and State of Illinois, have invented a new and Improved Car-Coupler, of'which the following is a full, clear, and exactdescription.

My invention relates to animprovement in car-couplers, and has for its object to provide a coupler of simple and durable construction, wherein the link cannot possibly become loosened when opposed draw heads are coupled,unless the pin be purposely thrown to the uncoupling position.

A further object of the invention is to proence indicate corresponding parts in all the views.

Figure 1 is a side elevation of the improved coupler illustrated as applied to a car. Fig.

. 2 is a central vertical section through a drawhead, illustrating the coupler as in position to receive the link of an opposed coupler. Fig. 3 is a side elevation of a detached coupler, illustrating the same in a coupled position; and Fig. 4 is a longitudinal section through a draw-head when the coupler is coupled with an opposed draw-head, the sections illustrated in Figs. 2 and 4 being both taken on line a: x of Fig. 5,Which latter ligure illustrates a front elevation of the coupler.

In carrying out the invention the bufferhead 10 of the draw-head proper is provided with a vertical channel 11, produced in its front face and extending a distance rearward, which channel also projects downward through the lower or under face of the bufferwall of this channel 11 is preferably concave,

as illustrated at d. The channel 11 is intersected by a link-opening 12, which extends face of the buffer-head above and below thel link-opening 12 is inclined from the top and 'bottom in the direction of the said opening to facilitate the guidance of the link therein. The link 13, employed in connection with this coupler, is preferably of the usual type.

Vithin the channel or chamber 1l of the draw-head, at or about its center and nearer its lower end than its front, acoupling-pin 14 is fulcrumed. This coupling-pin is fulcrumed upon a rod or bolt 15, extendingA transversely through the drawhead, which pin passes through an elongated slot 16 in the coupling- -pin, whereby the said pin is enabled to move vertically upon its fulcrum. The body A of the pin is of greater length than width and is made to terminate at its o uter end in a hook 17, and from the inner longitudinal edge of the coupling-pin a horn 18 is projected, the outer longitudinal edge of which horn is conveXed, as shown at Z9 in Fig.- 2, and between the hook-like extremity 17 of the pin and `the horn a recess 19 is produced.

To the under side of the draw-head at its rear a lever-arm 2O is fulcru1ned,-which arm is provided with a Aweight 21 at its rear end, and is connected at its forward end by links 22 with the outer or lower extremity of the coupling-pin. The weight 21 Vis adapted to normally retain the body of the lever-arm in a parallel position with the bottom of the draw-head and close thereto. In order to positively normally retain the arm in this position, a bow-spring 23 may also be attached to the bottom of the draw-head and made to` contact with the under edge of the lever-arm, as illustrated in Figs. 3 and 4.

Above the lever-arm 20, between' its fulcrum and forward end, a finger-24 is pivoted in a bracket securedto the bottom of fthe drawhead, the rear end of which linger is weighted, as shown at d, to normally sustain the finger in ahorizontal position. To each trunnion of `/the finger by which it is pivoted in thebracket a crank-shaft 25 is secured, the free ends of which shafts extend outwardly, respectively,

beyond the opposite sides of the car. Upon IOO the weighted end of the finger 2i a pin 2G is formed, which pin is adapted for engagement by one member of a crank or elbow-lever 27, pivoted upon the side of the car atany convenient point, which lever 27 is provided with an attached rod 2S, leading upward to the top of the car, as shown in Fig. 1. Thus the finger 2t may be manipulated through the shafts 25 from the side of the car, or by means of the rod 28 from the top of the car.

In operation, when the co'upler is in the position illustrated in Fig. 2 and the drawhead is to be coupled with an opposed drawhead, the link being in the latter, when the link strikes the outer convexed surface of the horn 1S of the coupling-pin, it drives the said horn inward, carrying the body of the pin to a vertical position, and as the pin reaches this position the link drops down into the recess 19. The coupling-pin is locked or retained in this vertical position by the links 22 straightening out and forcing the forward end of the lever-arm 2O in contact with the stopblocks 29, formed one at each side of the chalinel 1l upon the under face of the buifer-head. This upward movement of the lever-arm is due to the downward throw of the couplingpin, and also to the influence of the weighted section of the lever and to the spring To uncouple, either of the crank-shafts 25k or the upper rod 28 may be made to force the linger down upon the upper surface of the lever-arm 20, as shown in Fig. 4. Then the lever is thus forced down, its lower end is below the point at which the links 22 are connected with the coupling-pin. When the finger is thrown to the uncoupling position, the rear end, which is greatly enlarged, stands uppermost, essentially as shown in Fig. 4. The finger would remain in this position but for the action of the coupling-pin, as when the coupling-pin revolves in the draw-head the lower point of said pin strikes the tripiinger upon the forward edge of the enlarged portion and throws it back toits former position before the lever-arm again reaches the finger. As the weighted or enlarged portion of the finger passes over and back of the fulcrum, the linger remains at a forward inelination, as shown in Fig. 3, and the said weighted end holds the linger in whatever position it is thrown, whether by hand or by the coupling-pin.

Having thus described my invention,I claim as new and desire to secure by Letters Patentl. In a car-coupler, the combination, with a draw-head and a pin fulcrumed in the said draw-head extending below the same and provided with a hook at its upper inner end and a horn adjacent to said hook, of a weighted lever-arm fulcrumed beneath the draw-head, and links connecting the said lever-arm and coupling-pin, substantially as shown and described.

2. In a car-coupler, the combination, with a draw-head and a pin fulcrumed in the said draw-head, the lower end whereof is adapted to project beyond the said draw-head, and Aits upper inner end being provided with a hook and a horn adjacent to the said hook, of a lever weighted at the outer end, links connecting the forward end of the lever and the lower end of the coupling-pin, and a tripfinger adapted to depress the lever, substantiall'y as shown and described.

3. In a car-coupler, the combination, with a draw-head and a pin fulcrumed therein to have vertical and lateral movement, having its lower end projected below the draw-head and provided at its upper inner end with a hook, and a horn having a convex outer surface adjacent to said hook, of a weighted lever fulcrumed beneath the draw-head, links connecting the forward end of the said lever and the lower end of the coupling-pin, andacounterpoise-nger adapted to trip the saidlever, all combined for operation, substantially as shown and described.

4. The combination, with a draw-head provided with a vertical channel, a transverse link-opening crossing said channel, and a coupling-pin pivoted in the channel of the draw-head capable of lateral and vertical movement, having one end projected downward below the draw-head and provided at its inner upper end with a hook-like projection, and a horn having a convened outer surface adjacent to said hook, of a lever-arm weighted at its rear end, links connecting the forward end of t-he lever and the lower end of the coupling-pin, and a eounterpoise trip finger adapted for contact with the said lever,

all combined for operation, substantially as and for the purpose specified.

ROBERTS M. DRY.

Witnesses:

G. S. SMITH, FRANK GRAY. 

